Q4 Sulfuric acid is titrated with potassium hydroxide in the preparation of potassium sulfate salt.

(i) Potassium sulfate is a Group(I) soluble salt. Titration is recommended for preparation of all Group (I) salts as they are soluble. As the solutions used are colourless, indicatior is also used to identify the end point of neutralization between sulfuric acid (colourless) and potassium hydroxide (colourless) where the solution with indicator turns colourless.

(ii)